Motion Monitor (CB8275E)

Suggested by General Electric in a 1970 document, this circuit uses a LASCR, or SCR fired by light. This component is uncommon today.

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S-meter for receivers (CB7926E)
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Triangular Generator (CB13028E)
National Semiconductor suggests the circuit in the figure that uses two operational amplifiers of type...
DC stabilized amplifier (CB6788E)
This circuit was obtained from Linear Technology documentation from the 90s. The circuit uses...